Alcator C-Mod Run 930927 Information

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Miniproposals
Miniproposal:
Date Filed:
Title:
First Author:
Session Leader:Tom Luke (shots 1-6)

Operators
Session leader(s):Tom Luke
Physics operator(s): Unknown
Engineering operator(s): Unknown

Engineering Operator Run Comment
test puff valve

Session Leader Plans

Physics Operators Plans

Session Leader Summaries

Physics Operator Summaries

Session Leader Comments
Sep 27 1993 02:12:01:280PM930927001Tom LukeShot 2, 3 puffs. Each is 10 ms long at 0,.5 and 1.0s into the shot.
The pulse heights are as follows: 40, 60 , 80 V.. We do not see the 40 V
pulse but the second and third pulses are clear on the gauge.

Sep 27 1993 02:38:28:920PM930927002Tom LukeShot 3, 3 puffs. Each is 10 ms long at 0,.5 and 1.0s into the shot.
The pulse heights are all 80 V. Seems like we got too much gas into the
machine in the prefill.

Sep 27 1993 02:45:40:170PM930927002Tom LukeShot 4. Same as shot 3. 3 puffs. Each is 10 ms long at 0,.5 and 1.0s into the shot.
The pulse heights are all 80 V. Looks like its working. Can see the
rise in pressure clearly. Looks like the rise decreases from puff 1 to 3.

Sep 27 1993 03:00:07:840PM930927004Tom LukeShot 5. 3 puffs. At 0,.5 and 1.0s into the shot. Pulse lengths are
10, 20, 40 ms
The pulse heights are all 60 V. Data looks good.

Sep 27 1993 03:13:46:320PM930927005Tom LukeShot 5. 3 puffs. At 0,.5 and 1.0s into the shot. Pulse lengths are
10, 20, 40 ms
The pulse heights are all 40 V. See the puffs but at the lower
voltage it seems like there is a greater effect due to the time
history. The last puff increases the amount put in by more than
a factor of 2.

Sep 27 1993 03:25:21:210PM930927006Tom LukeShot 5. 3 puffs. At 0,.5 and 1.0s into the shot. Pulse lengths are
10, 20, 40 ms
The pulse heights are all 80 V. Got data.

Physics Operator Comments

Engineering Operator Comments
ShotTimeTypeStatusComment
102:06:20:950PMPlasmaOk
202:19:06:090PMPlasmaOkGas Puff Test
302:40:25:710PMPlasmaOkGas Puff Test
402:55:21:120PMPlasmaOkGas Puff Test
503:07:46:710PMPlasmaOkGas Puff Test
603:19:58:950PMTestBad